Hi,
we're currently evaluating the VFS library basically for ftp and sftp use.
I have two problems with sftp file access:
First:
I wrote a little sample programm displaying the list of files in a
remote direcory:
class VfsTest
{
public static void main(String argc[]) throws Exception {
FileSystemManager fsManager = VFS.getManager();
FileObject ftpDir = fsManager.resolveFile( "sftp://xipolis:[EMAIL
PROTECTED]/home/xipolis/" );
System.out.println(ftpDir.exists());
FileObject list[] = ftpDir.findFiles(new FileDepthSelector(0,1));
for ( int i=0; i < list.length; i++ ) {
System.out.println(list[i].getName().getBaseName());
}
System.out.println("\nDONE\n");
}
}
While this works in principle, the programm does not terminate afterwards.
It just hangs.
I had a look at it using the debugger and I see
> threads
Group system:
(java.lang.ref.Reference$ReferenceHandler)0x368 Reference Handler cond. waiting
(java.lang.ref.Finalizer$FinalizerThread)0x369 Finalizer cond. waiting
(java.lang.Thread)0x36a Signal Dispatcher running
Group main:
(java.lang.Thread)0x36c Thread-0 running
(java.lang.Thread)0x36d DestroyJavaVM running
> thread 0x368
but I don't know how to find out, what the finalizer and the reference handler
are waiting for.
A 'where' in the reference handler just shows
Reference Handler[1] where
[1] java.lang.Object.wait (native method)
[2] java.lang.Object.wait (Object.java:429)
[3] java.lang.ref.Reference$ReferenceHandler.run (Reference.java:115)
and a 'where' in the finalizer
Finalizer[1] where
[1] java.lang.Object.wait (native method)
[2] java.lang.ref.ReferenceQueue.remove (ReferenceQueue.java:111)
[3] java.lang.ref.ReferenceQueue.remove (ReferenceQueue.java:127)
[4] java.lang.ref.Finalizer$FinalizerThread.run (Finalizer.java:159)
The situation is unchanged if I call close() for all FileObjects and
I didn't see any other methods, that might have to be called for cleaning
up.
Can anyone help me with this problem?
Am I missing something or is this a bug in the sftp handler?
Other protocols work fine.
Second:
While some connections work, I get exceptions for others.
VFS is claiming that it could not connect to the SFTP server, which is
caused by com.jcraft.jsch.JSchException: UnknownHostKey
However the host is in my .ssh/known_hosts.
As far as I've seen yet, the only difference is, that the working hosts
have an entry of type ssh-dss whereas the ones that don't work have ssh-rsa
entries.
But the http://www.jcraft.com/jsch/ says
Host key type: ssh-dss,ssh-rsa
and a colleague reports that it's working for him even with a ssh-rsa key.
Has anyone had such a problem? Any hint what I might be doing wrong?
TIA
Morus
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